Adds a poster theme

 - The theme uses beamerposter package
 - TODO: some refactoring to group common definitions with the beamer
   theme

poster.tex

+\documentclass{beamer}
+\usepackage[utf8]{inputenc}
+\usepackage[T1]{fontenc}
+
+% beamer theme
+\mode<presentation>
+% If you want headline with section list
+%\usetheme[infolines]{tptnew}
+\usetheme{tptposter}
+
+\title{Simon from a side channel perspective}
+\author{Me, MySelf and I}
+\date{xx. ss, 2014}
+\email{tarik.graba@telecom-paristech.fr}
+\myurl{http://www.telecom-paristech.fr}
+
+\begin{document}
+
+\postertitle
+
+%
+% first column
+\begin{columns}
+   \begin{column}{.45\textwidth}
+      Write something here
+
+      \begin{block}{Truc}
+         Foo
+      \end{block}
+
+      \medskip
+      Write something here
+
+      \begin{block}{Truc}
+         Foo
+      \end{block}
+
+   \end{column}
+   %% Second column
+   \begin{column}{.45\textwidth}
+      Write something else here
+
+      \begin{block}{Truc}
+         bar
+      \end{block}
+
+      \medskip
+      Write something else here
+
+      \begin{block}{Truc}
+         bar
+      \end{block}
+   \end{column}
+
+\end{columns}
+
+\end{document}

texinputs/beamerthemetptposter.sty

+\NeedsTeXFormat{LaTeX2e}[1995/12/01]
+\ProvidesPackage{beamerthemetptposter}[2011/11/15]
+
+\RequirePackage{xcolor}
+\RequirePackage{helvet}
+\RequirePackage[orientation=portrait, size=a0, scale=1.4]{beamerposter}
+
+\mode<presentation>
+
+% TPT colors
+\definecolor{tptred}{RGB}{191,18,56} 
+\definecolor{tptbrown}{RGB}{109,80,71}
+
+% some usefull beamer colors
+\setbeamercolor{structure}{fg=tptred}
+\setbeamercolor{block title}{parent=structure,bg=normal text.bg!75!tptbrown}
+\setbeamercolor{block body}{bg=normal text.bg!98!tptbrown}
+\setbeamercolor{block title alerted}{use={normal text,alerted text},fg=alerted text.fg!75!normal text.fg,bg=normal text.bg!75!tptred}
+\setbeamercolor{block body alerted}{bg=normal text.bg!95!tptred}
+\setbeamercolor{poster title}{fg=white,bg=tptred}
+\setbeamercolor{poster logo title}{fg=black,bg=white}
+
+\setbeamercolor{date in head/foot}{fg=white,bg=tptbrown}
+\setbeamercolor{page in head/foot}{fg=white,bg=tptred}
+\setbeamercolor{dept in head/foot}{fg=white,bg=black}
+
+
+\newlength{\logoheight}
+\setlength{\logoheight}{.07812\paperwidth}
+\pgfdeclareimage[width=\logoheight]{logoTPT}{tpt}
+\setbeamertemplate{navigation symbols}{}
+
+\newcommand\email[1]{\gdef\insertemail{#1}}
+\newcommand\myurl[1]{\gdef\insertmyurl{#1}}
+\email{}
+\myurl{}
+
+
+\defbeamertemplate*{footline}{tpt default}
+{%
+   \leavevmode%
+   \begin{beamercolorbox}[left, sep=0pt, rightskip=.03\paperwidth,leftskip=0pt, wd=\paperwidth, ht=.03\paperheight, dp=.02\paperheight]{poster title}
+      \hspace{.07\paperwidth}%
+      \mbox{%
+      \begin{beamercolorbox}[rightskip=0pt,leftskip=0pt,sep=0pt,center,wd=.07\paperwidth, ht=.030\paperheight, dp=.030\paperheight]{dept in head/foot}\end{beamercolorbox}
+      \begin{beamercolorbox}[rightskip=0pt,leftskip=0pt,sep=0pt,center,wd=.07\paperwidth, ht=.030\paperheight, dp=.030\paperheight]{date in head/foot}\end{beamercolorbox}
+      }
+      %
+      \hfill{}%
+      \normalsize{{\bfseries contact~:}~\insertemail}%
+      \hfill{}%
+      \normalsize{\insertmyurl}
+      \hfill{}%
+   \end{beamercolorbox}%
+}
+
+\newcommand\postertitle{
+\begin{beamercolorbox}[left, rightskip=0pt, wd=\paperwidth, ht=.075\paperheight, dp=.03\paperheight]{poster title}
+   \hspace{.02\paperwidth}%
+   \raisebox{.015\paperheight}{%
+      \begin{tabular}{c}
+   \begin{beamercolorbox}[center, wd=1.1\logoheight, ht=1.05\logoheight, dp=.05\logoheight]{poster logo title}
+      \pgfuseimage{logoTPT}
+   \end{beamercolorbox}\\
+   \scriptsize{Institut Mines-Télécom}
+\end{tabular}
+    }
+    \hfill{}%
+    \begin{beamercolorbox}[center,wd=.7\paperwidth, ht=.075\paperheight, dp=.01\paperheight]{}
+          \huge\bfseries\inserttitle\par%
+          \small~\par%
+          \large\insertauthor\par
+          \small\insertdate
+    \end{beamercolorbox}
+   \hfill{}%
+   \begin{beamercolorbox}[center,wd=.125\paperwidth, ht=.075\paperheight, dp=.031\paperheight]{poster logo title}
+   \end{beamercolorbox}
+\end{beamercolorbox}
+\vspace{.03\paperheight}
+}
+
+\mode<all>